baber/WOPTO huggingface dataset:
Patent GB-1377541-A (GB)
Title: Babys napkin
IPC: A61F13/15
Filed: 1972-01-25
Abstract: 1377541 Baby's napkin S O SVEDBERG 25 Jan 1972 [25 Jan 1971] 3470/72 Heading A3V A baby's napkin comprises a blank 10 of plastics sheeting formed with two projecting tongues 11, a liquid absorbing layer 16 enclosed by and attached to folded parallel margins 12 and 14 of the blank 10, and openings 19 formed in the blank 10 to allow passage of the tongues 11 which are then tied together to fasten the napkin around the baby. The sides of the blank 10 are configured-concavely at the rear at 20 and convexly at 21-to form a tight seal around the baby's body. The blank 10 is preferably of polyethylene and the layer 16 of cellulose wadding within a thin permeable cellulose wrapping and the blank and layer are joined together by supersonic welding.
Patent GB-734620-A (GB)
Title: Method of and apparatus for the continuous production of trimethylene trinitramine
Filed: 1953-02-06
Abstract: <PICT:0734620/IV (b)/1> Trimethylene trinitramine is made by nitration of hexamethylene tetramine with cooled nitric acid successively in several stages at different temperatures, expelling nitrous gases successively in several stages at different temperatures from the resulting nitration mixture, each nitration and expelling stage being carried out separately, separating the resulting trimethylene trinitramine, suspending it in warm water and passing it through several washing and stabilizing stages in which air is passed through the suspension to give intimate contact of the finely-dispersed trimethylene trinitramine with the warm water and finally separating the stabilized trimethylene trinitramine. Apparatus for carrying out the invention comprises a set of nitrating vessels provided with cooling jackets, stirring means, means for supplying cooled nitric acid and hexamethylene tetramine to each vessel and connections between each nitration vessel and the succeeding vessel to allow the nitration mixture to pass from one nitration vessel to the other, a set of nitrous gases expelling apparatuses arranged in series connected with the last nitration apparatus, each expelling apparatus being equipped with heating and cooling jacket and stirring device, connections to conduct the nitration mixture between each expelling apparatus and the next and means for discharging the nitration mixture from the expelling apparatus, a separator for removing the trimethylene trinitramine from the spent nitric acid, apparatus for suspending the trimethylene trinitramine in warm water, emulsifiers arranged in series with means for introducing the trimethylene trinitramine into the first emulsifier, means for introducing air into the emulsifiers and means for discharging the suspension, a separator for removing the washed and stabilized trimethylene trinitramine from the spent wash water and apparatus for drying the trimethylene trinitramine.  Preferred modifications comprise using as the expelling apparatus duplex apparatus fitted with stirrers and the use of rubber balls in the emulsifiers to assist in comminuting the crystals.  The drying apparatus, Fig. 3, preferably consists of a drying passage having an intermediate filterplate 18 permeable to air slightly inclined to the horizontal so as to give a lower chamber into which hot air is blown and an upper chamber wherein the material is dried. Radio-active substances, suspended on plates 21, may be present to eliminate static electricity.  The apparatus is described with reference to drawings and an example is given.
Patent GB-491657-A (GB)
Title: Improvements in the washing out of hydrocarbons from gases
IPC: C10G5/04
Filed: 1937-02-05
Abstract: 491,657. Washing gases. JOHNSON, G. W. (I. G. Farbenindustrie Akt.-Ges.) Feb. 5, 1937, No. 3497. [Class 55 (ii)] One or more hydrocarbons are washed out of a gas mixture by washing oil first at d in the same direction of flow, and then washing with fresh oil at e in counter-current, preferably cooling during washing. The gas, e.g. a mixture of methane, propylene, isobutane and isobutylene is compressed at b, passed through a cooler d where it is washed in co-current with oil from a pipe c, and passes up a tower e to the top of which washing oil is fed from a pipe f. The gas solution at the bottom of the tower is fed by a pipe h to a regeneration plant i, where dissolved gases are removed from the oil by release of pressure or by distillation, the oil being returned by pipes c, f. Waste gas containing methane passes off at the top of the tower.
Patent GB-463095-A (GB)
Title: Improvements in or relating to reservoir pens
IPC: B43K5/06
Filed: 1936-02-05
Abstract: 463,095. Fountain pens. WADA, S., (Tsuchija, K.) Feb. 5, 1936, No. 3535. [Class 146 (iii)] In a piston self-filling fountain pen of the kind having the lower end of the piston rod formed as a valve to co-operate with a seat in the ink-feed duct, the rod is yieldably mounted in the operating-knob so as to prevent strain if the knob is screwed in too far, and to prevent rotation of the valve and consequent wear. The rear end of the rod e passes through a nut l, which serves for adjusting the length of the rod, into the hollow interior of a knob d screwing on to the end of the barrel a. The rear end of the rod is provided with a nut k; and a compression spring m is mounted between the nut and the base of the knob d.
Patent GB-766509-A (GB)
Title: Tubleless tire
IPC: B60C15/06
Filed: 1955-02-07
Abstract: 766,509. Pneumatic tyres. GOODYEAR TIRE & RUBBER CO. Feb. 7,1955 [Sept. 15, 1954], No. 3535/55. Class 144 (2). To reduce leakage of air from a tubeless tyre along the interstices between the filaments 30 of the multifilament cord reinforcing plies 18-21, flipper strips 22 and bead chafers 23, the flipper strips 22 and/or the bead chafers 23 are impregnated with a cord to rubber bonding agent to fill the said interstices so that the flipper strips and/or chafers have a lower air diffusion rate than the reinforcing plies 18-21. The impregnation may be effected by dipping the fabric of the strips or chafers into a solution or dispersion of the impregnant one or more times in a relaxed state and subsequently tensioning the filler and warp of the fabric. The impregnant may comprise mixtures of rubber latex with protein and/or a soluble aldehyde resin.
Patent GB-660674-A (GB)
Title: Improvements relating to the pulverising of solid materials
IPC: B02C19/00
Filed: 1949-02-09
Abstract: 660,674. Jet pulverizers. MICRONIZER, CO. Jan. 25, 1950 [Feb. 9, 1949], No. 3592/49. Class 59 [Also in Group XXX] Material is fed into the grinding chamber of a jet pulverizer in which the grinding fluid is maintained in circulation in a compact continuous mass. As shown applied to the type of pulverizer diclosed in Specification 432,191 the material is fed via hopper 47 into the feeder tube 21 the feeder screw 26 rotating therein forcing it into the grinding chamber 11 as a solid continuous plug the formation of which is possible by providing a restriction 24 in the chamber inlet 25 and preventing the end 27 of the screw from extending into said opening. Axial displacement of the screw 26 towards and away from inlet 25 is by an adjustable screw 44 and thrust head 43 bearing on either of a pair of thrust collars 41, 42, the stuffing box 32 preventing escape of grinding fluid from the end 31 of the feeder tube before the formation of the solid mass of material being fed through it. The grinding fluid is injected into the chamber 11 from the header 13 through inclined nozzles 16 the fluid and pulverized material escaping through the pipe 17 to suitable separating means.
Patent GB-247231-A (GB)
Title: Improvements relating to irradiation apparatus, for treating fluids with ultra-violet rays
IPC: C02F1/32
Filed: 1926-02-09
Abstract: 247,231. Quarzlampen Ges. Feb. 9, 1925, [Convention date]. Colour filters.-In apparatus for treating liquids or gases with ultra-violet rays, the lamp d and its accessory parts are constructed so as to close an opening in the vessel containing the liquid or gas. As shown in the Figure, an opening in the vessel b is surrounded by a frame a which is closed by a quartz panel c. This panel is replaced by a double-walled quartz con. tainer through which a cooling medium, such as water, may be passed, and the water may be tinted, as with methyl violet, to filter the radiations.
Patent GB-193260-A (GB)
Title: Improvements in the construction of staircases
IPC: E04F11/112
Filed: 1922-02-07
Abstract: 193,260. Moore, J. C. Feb. 7, 1922. Stairs and staircases.-In a staircase of the kind consisting of a series of sheet metal combined treads and risers, the upper edge B<2> of each riser extends above the level of the tread above and is secured to a downturned flange A<1> on the tread. Concrete or other plastic material is then applied to the tread and also, if desired, over the nosing and face of the riser, and is keyed by studs G. The upper edge of each riser may be notched and inclined as shown, or vertical. A number of these units may be previously riveted together off the site and be subsequently secured to stringers by means of angle-irons. Expanded metal E may be secured by split pins to the underside and be plastered to form a soffit.
Patent GB-1496033-A (GB)
Title: Bituminous binder compositions
IPC: C09K23/32
Filed: 1975-01-28
Abstract: 1496033 Tetrahydropyrimidine derivatives PIERREFITTE-AUBY 28 Jan 1975 [31 Jan 1974] 3692/75 Heading C2C [Also in Divisions C3 and B1] A mixture of polynitrogenous compounds characterized by containing a tetrahydropyrimidine substituted on the nitrogen atom by a linear chain comprising one or more amine groups and having the general structure wherein R is a saturated or unsaturated linear hydrocarbon (C 8-22 ), n= 2-5, and p=(n-1) are prepared by reacting a compound of the formula RNH(CH 2 CH 2 CH 2 NH) n H by reacting with formic acid while removing the water produced by the reaction. The specific examples describe the preparation of compounds using as starting material tallow triamine (R=alkyl derived from tallow, n = 2) and tallow tetramine (R=alkyl derived from tallow, n=3).
Patent GB-1435053-A (GB)
Title: Dispensing flowable material from a cartridge
IPC: B05C17/015
Filed: 1974-01-28
Abstract: 1435053 Sealant guns PRODUCTS RESEARCH & CHEMICAL CORP 28 Jan 1974 [12 March 1973] 03776/74 Heading F1R The supply and exhaust of compressed air to the actuating chamber of a pneumatically actuated dispensing gun is controlled by alternately collapsing the inlet and exhaust conduits. As shown a trigger member 31 has damping portions 32, 33 co-operating with respective abutment pins 36, 37 between which the respective inlet and exhaust conduits 21, 22 pass. The trigger is normally biased to close the inlet conduit 21. Flow may be regulated by adopting intermediate positions of the trigger. The head 61 receives a cartridge which is enclosed by a retainer 52 screwed on to the head 61. Screwed adapters may be used to accommodate larger or smaller cartridges and retainers Figs. 6-8 (not shown).
Patent GB-1499514-A (GB)
Title: Uv recording material
IPC: G03C1/685
Filed: 1975-01-29
Abstract: 1499514 Photo-sensitive materials AGFAGEVAERT AG and LICENTIA PATENTVERWALTUNGS GmbH 29 Jan 1975 [29 Jan 1974] 3809/75 Heading G2C [Also in Division C4]  A photo-sensitive material comprises a selfsupporting or a supported layer containing a binder which is a copolymer of 1-20 parts by weight of methyl methacrylate (MMA) and 2 parts by weight of an alkyl acrylate or methacrylate in which the alkyl group contains at least 2 carbon atoms, a U.V. sensitive photocromic compound and an organic halogen which generates hydrogen halide on exposure. A sensitizer such as diphenylamine or benzophenone may also be present. Specified photochromic compounds are spiropyrans, spiroxazines, aryl vinyl pyran and aryl vinyl thiopyran. The exemplified binder is MMA/butyl acrylate. Reference has been directed by the Comptroller to Specification 1347804.
Patent GB-827808-A (GB)
Title: Improvements in or relating to apparatus for burning waste materials
IPC: F23G5/00
Filed: 1958-02-06
Abstract: 827,808. Incinerators. KLUTE, P., [trading as HIRZ K.G., E. L.]. Feb. 6, 1958 [Feb. 7, 1957], No. 3845/58. Class 126 [Also in Group XII] A cylindrical metal housing 1 with an insulating lining 3 has a grate 5 in its lower part above an ash pan 7 connected to a cover 12. Above the cover 12, the end of the housing is closed by a horizontally hinged door 10. A frusto conical part 2 at the other end of the housing carries a vertical grating 16 and is closed by a plate 17 with a central hole 18. In use, the housing 1 is secured to hinge sockets at the sides of the door of an oil burning furnace by pins 20 engaging complementary hinge sockets 19 at the sides of the end plate 17 so that gases from refuse burning on the grate 5 pass through the hole 18 to the oil burning combustion chamber. The draught through the housing is regulated by partially withdrawing the cover 12 and ash pan 7. By removing one hinge pin 20 the housing can. be swung to one side about the hinge formed by the opposite sockets 19 and pin 20. The housing may have double walls, and serve as a water heater.
Patent GB-1396291-A (GB)
Title: Gas-fired domestic oven
IPC: F24C14/02
Filed: 1971-02-03
Abstract: 1396291 Self-cleaning gas-fired ovens PARKINSON COWAN APPLIANCES Ltd 2 May 1972 [3 Feb 1971] 3848/71 Heading F4W A gas-fired pyrolytically cleaned oven comprises at least one burner 19 in a cavity 16 at the rear of the base 15 of the oven chamber 12, a fan 22 for delivering secondary air between the burner 19 and the rear wall 13 of the chamber 12 at least during the self-cleaning process, and two combustion products outlet vents 17 at the base of wall 13 adjacent the side walls of the oven, whereby a flow of combustion products is induced between the burner 19 and the forward edge of the cavity 16 and around the burner 19 to mix with the secondary air flow.
Patent GB-1491944-A (GB)
Title: Data recording systems
IPC: G01D1/04
Filed: 1975-01-29
Abstract: 1491944 Producing graphical records SIEMENS AG 29 Jan 1975 [29 Jan 1974] 3976/75 Heading G4H [Also in Division H3] In recording on a moving light-sensitive chart, a row of light-emitting diodes 29 are selectively energized according to the values of a plurality of measured amplitude signals U 1 -U m  which are simultaneously compared, 2, with a common linear ramp signal from integrator 6 to switch on a transistor 28 at times dependent on U 1 -U m  to energize corresponding LEDs 29 which are prepared one at a time in turn by a cyclically operating control 31. Interpolation between samples is provided by comparing, 11, the ramp signal with the previous samples, stored at 18, each EX-OR gate 9 emitting from the time when the ramp reaches the value of the lower of the present and previous samples of the respective signal U 1 -U m  unil the ramp reaches the value of the other sample, capacitor 24 facilitating transfer to the pulse from comparator 2 to the OR gate 26, whereby all the LEDs 29 assigned to the values between the previous and present values are energized. As shown in Fig. 1 there is a respective switch 30 in series with each LED 29 and control 31 is a shift register stepped by clock pulses derived from a voltage-to-frequency converter 34 controlled by the same reference voltage 35 as the integrator 6. A frequency divider 39 provides a reference pulse for marking a reference amplitude on the chart. Pulse generator 41 is for marking "vertical" lines on the chart. Resetting of shift register 31, integrator 6 and frequency divider 39, and transfer from capacitor 17 to 18 in the analogue stores 14 is synchronized by a second frequency divider 33. In a modification (Fig. 2, not shown) a BCD counter and decoders replace shift register 31 reducing the number of switches needed to cycle the LEDs.
Patent GB-712860-A (GB)
Title: Disposable syringe
IPC: A61M5/28
Filed: 1952-02-14
Abstract: 712,860. Hypodermic syringes. OGLE, R. W. Feb. 14, 1952 [July 9, 1951], No. 3978/52. Class 81(2) A syringe comprises a cylindrical barrel 20 having a piston 35 with an open outer end for the insertion and receiving of a cap 30, the cap 30 being provided with a thick end wall in which the free end of a hollow needle 25 communicating with the barrel 20 is insertable when the cap 30 covers the needle 25, the needle being retained in the barrel 20 by hoop tension, and the piston 35 being provided with circumferential ridges at least one of which is located on a hollow portion of the piston in which hollow portion the cap 30 is insertable at least deep enough to be surrounded by said ridge. A boss 22 carries a needle 25 which is driven into it and which for distribution purposes is covered by the cap member 30 which seats on the boss 22. The needle 25 cuts into the thickened closed end of the. cap member 30 so that it is sealed. Grooves 23 are provided on the boss 22 so that, when the cap 30 is not fully seated on the boss 22, streilising gas can pass through the syringe barrel 20, needle 25 and cap 30 before the syringe is filled with medicament. A rubber piston 35 provided with spaced annular flanges serves to close the open end of the syringe barrel 20. When the syringe is to be used, the cap 30 is removed thus unsealing the needle 25 and a male thread 32 on the cap 30 is inserted in a female thread in the piston 35, the cover 30 then serving as a plunger. The wall of the syringe barrel has a thickness of the order of 60/1000 inches. Specification 712,859 is referred to.
Patent GB-244946-A (GB)
Title: Improvements in sewage screening apparatus
IPC: E02B8/02
Filed: 1925-02-13
Abstract: 244,946. Mills & Co. (Engineers), Ltd., J., and Mills, M. W. Feb. 13, 1925. Strainers comprising grids or gratings.-A screen for sewage is cleaned by a rake which feathers automatically as it is raised and lowered over the screen. The rake t, Fig. 1, is mounted on a shaft e<4> journaled in a frame e sliding in guides c parallel to the screen a. The frame e is raised by a rope i which by intermediate mechanism pulls a chain j<4>, Fig. 2, and turns the shaft e<4> so that the rake t is at right angles to the screen. The intermediate mechanism comprises a three armed lever g pivoted in the slotted head of a bar f<1> sliding in a bracket on the frame e and attached to the chain f<4>. When the screen is to be raised a bar i<1> sliding in a bracket on the frame e and to which the rope i is attached is brought into engagement with a hook g<3> on the lever g bv springs k. When the screen has been raised a bowl h strikes an arm g<2> of the lever g causing the hook g<3> to be released and allow the rake t to fall into a position parallel to the screen while descending. While in the raised position the rake t is cleaned by a rotary rake p turned by gearing and a star wheel p<1>, Fig. 1, struck by a pivoted device r<2> moved by the raising of the rake. The device r<2> is mounted on a slide bar r having a counterweight r<7> and carrying a projecting bracket, r<8>, Fig. 2, adapted to be struck by a pin e' on the rake. The solids from the rake p fall into a trough q, Fig. 1. The rope i passes round pulleys l, m, n and is operated by an air pressure cylinder o.
Patent GB-997366-A (GB)
Title: Improvements relating to alkyl lead compositions
IPC: C07F7/24
Filed: 1962-02-02
Abstract: The redistribution of alkyl groups in an alkyl lead compound or a mixture of alkyl lead compounds containing different alkyl groups is brought about by contacting a solution of the alkyl lead compound in ethylene dichloride, ethylene dibromide or a mixture thereof with boron trifluoride.  Preferably a mixture of tetramethyl lead and tetraethyl lead is used. The boron trifluoride may be used in amounts from 0.05 to 0.2% by weight, based on the tetraalkyl lead.  Other inert solvents, e.g. toluene, hexane, gasoline and kerosene may be present.
Patent GB-496851-A (GB)
Title: Improvements in and relating to cabinet locking mechanism
IPC: E05B41/00
Filed: 1938-02-09
Abstract: 496,851. Hand-set indicators. GISPEN'S FABRIEK VOOR METAALBEWERKING N.V. Feb. 9, 1938, No. 4080. Convention date, Feb. 18, 1937. [Class 118 (i)] [Also in Group XXV] In a fastening for a cabinet having one or more doors, drawers, or the like, blocked by a key lock, a mechanical device, controlled by the lock and by feelers co-operating with the drawers, gives a visual indication when the fastening is in engaging position and all the drawers have been closed. Each drawer B is fastened by a catch 20, fixed to a lifter 19, engaging a hook 23 pivoted to the drawer and held in its uppermost position by a spring 24, this arrangement enabling the drawer to be closed after the fastening has been moved to the engaging position. The lifter 19 is actuated by a crank 13 on the end of a shaft 10 which extends to the front of the cabinet and is turned by a knob 11. Release of the fastening is prevented by pressing the end 16 of a push-button 5 into the path of a member 14 pivoted to the crank 12 on the shaft 10, the push-button being locked in its innermost position by a blade spring 3 snapping into a notch in the button shank. The push-button is unlocked by turning the cylinder 1 of a keylock when a cam 2 depresses the blade spring, allowing the button to be pressed out by the spring 9a acting through the rod 9 and pin and slot joint 6, 8. The end 31 of the rod 9 contacts the end of a rod 30 and causes the indicator 25 to swing in front of the opening 27. If with all the drawers closed the fastening is engaged and the push-button pressed in, the rod 30, under the influence of the spring 33, follows the motion of the rod 9 and the indicator moves to the "locked" position. If, however, the lifter 19 is lowered to engaging position and the push-button pressed before all the drawers have been closed, the end of the feeler 40 corresponding to each open drawer will not contact the hook 23, and consequently the spring 44 will press the feeler downwards and the upper end 42 will turn the bell-crank lever 38, 37 and move the projection 35 carried by the rod 34 in front of the projection 32 on the rod 30. thus preventing it from following the movement of the rod 9, so that the indicator still shows "open." Immediately the last drawer is closed its feeler is lifted by the hook 23, since spring 24 is stronger than spring 44, and a spring 36 on the rod 34 removes the projection 35 from the path of the projection 32 of the rod 30, allowing the indicator to move to show that the fastening operation has been completed. The indicator 25 is preferably painted a different colour from the cabinet and the backing 26, and instead of covering the hole 27 when the drawers are open, it may be arranged to do so when they are locked, in which case the backing 26 may be transparent and may be illuminated. The invention is also described as applied to a cabinet-door having multiple bolts.